"In 1925, Fawcett ventured into the Amazon to find an ancient civilization, hoping to make one of the most important discoveries in history. For centuries Europeans believed the world's largest jungle concealed the glittering kingdom of El Dorado. Thousands had died looking for it, leaving many scientists convinced that the Amazon was truly inimical to humankind. But Fawcett, whose daring expeditions helped inspire Conan Doyle's The Lost World, had spent years building his scientific case. Captivating the imagination of millions around the globe, Fawcett embarked with his twenty-one-year-old son, determined to prove that this ancient civilization-which he dubbed "Z"-existed. Then he and his expedition vanished."

James Gray is directing from his own adapted screenplay, with Brad Pitt, who was once attached to star, producing alongside Dede Gardner, Jeremy Kleiner and Anthony Katagas. It isn't known when production may begin.